Trust us—you'll want to avoid these style faux pas.

There are some style rules that are made to be broken—like that silly "don't wear white jeans after Labor Day" guideline. That said, there are a few serious fashion mistakes that you can (and will) live to regret if you make them, according to our friends at Refinery29.

An example we couldn't agree more with: wearing clothes that almost fit. If you've ever squeezed into low-rise jeans and suddenly found yourself with a muffin top, you know exactly what we mean—there's just no reason to wear anything that makes you feel less confident. Or how about carrying a super-expensive bag that needs more TLC than the stuff inside it? Or wearing an entire outfit made by one designer? (After all, when you copy someone else's signature look, your own style can't shine through.)